Die-casting machine.



J. BATE.

DIE CASTING MACHINE.

APPLICAHON FILED DEC. 22.1914.

1 1 53,749. Patented Sept. 14, 1915.

2 SHEETS-SHEET I.

J. BATE.

DIE' CASTING MACHINE. APPLICATION FILED 050.22. 1914.

2 SHEETSSHEET 2.

wwefloz Jamey Wfimeooeo Patented Sept. 14, 1915. I

UNITED STATES PATE T OFFICE.

was

JAMES BATE, OF DETROIT, MICHIGAN.

BATE, a citizen of the United States, residing at Detroit, in

the connty' of WVayne and'State of Michigan, have-invented new and useful Improvements in Die-Casting Machines, of which the following is a's'pecification.

My invention relates to an improvement in die casting machines, and particularly to an improved rotary mold or die carrier whereby'a series of molds may be supported I that any mold may be brought into position to receive a charge of metalfrom the metal supplying part of the apparatus.

The object of the invention is to prov de a casting apparatus including a rotary (116 01 mold carrier adapted to detachably andint'erchangeably receive dies or molds for casting a variety of work, whereby 'difierent dies ,may jbe applied for use and removed s; when desired and any die for casting any )a ticular article easily, quickly and coniently'brought into communication with the metal supplying 'nozzle for the purpose of making the cast.

further object ""ovide'a machine of the character described injwhichthe dies when brought opposite the nozzle adapted to be moved in position tolreceiv'e the'charge of metal therefrom by the action of a suitable die shifting device, operated by air pressure or other suitable means: I ""*1he;i'nvention consists of the features of construction, combination and arrangement of par-ts'herein fully described and claimed,

reference'being had to the accompanying I bench or table 1,

drawings in which 5 Figure 1 is a top plan v1ew of a die casting apparatus embodying my invention. Fig.2 is-a-side elevation of the same. Fig. 3 is a vertical section on the line 3-3 of Fig. I, Fig. 4: is a vertical section on the line 4-4 of Fig. 3. i

The apparatus includes a supporting preferably mounted upon legs 2, and on which bench or table is mounted a suitable device 3 for supplying molten metal, discharged by means of a force feed device 4' through a nozzle 5, whereby the metal is forced into the forming cavity of the die or mold. The force feed device may be pneumatically or mechanically operated, no specific operating means being shown, as such does not constitute any part of the pres- Specification of Letters Patent.

of the invention is to- DIE-CASTING MACHINE.

Patented Se t 14, 1915'.

- Application filed December 22, 1914. Serial No. 878,573.

ent invention. The nozzle 5 is provided with a tapered end 6, for a purpose hereinafter fully described.

Supported upon the table 1 is a turn-table or rotary die carrier comprising an annular or a ring-shaped bottom section 7 and an upper or carrier section or ring 8, the meetingfaces of said sections being preferably grooved to form a raceway 9 for balls or other suitable anti-friction bearings 10, allowing the carrier section 8 to be easily revolved upon the section 7 which is rigidly fixed to the table 1. The nozzle 5 of the molten metal supplying device is arranged in uxtaposition to one side of the die carrier ring 8, at a point in its path of revolution, so that any of the dies or molds, which are mounted upon the ring 8, may be brought into position to receive a charge of molten metal from the nozzle.

As shown in the present instance, the ring 8 supports a series of dies 11, four of which are shown in the. present instance, it being understood, however, that any desired or convenient number of dies may be mounted upon the carrier ring. The upper face of the ring is provided at stated points with 12 to receive and engage the glove-tailed portions 13 on the bottom faces of the dies, by which each die is adapted to be slidably fitted in place by and removed in like manner, so that the dies will be rendered interchange able for use. It will be understood that those dies which are employed most fre-" quently may be mounted upon the carrier,

tion described admits of the substitution of v other dies when occasion requires, thus enabling a wide range or variety of casting work. to be performed in a ready and convenient manner upon one and the same machine. l

Each die is provided with a forming chamber or cavity and is provided at its inner side with a tapered inlet 14 leading to said chamber or cavity and adapted to receive the tapered end 6 of the nozzle 5, so that by shifting the die with which the nozzle is in registry inwardly proper connection may be established between the die and metal supplying device to supply the die phamber or cavity with the molten metal for making the desired kind of casting. 1 For the purpose of adjusting the dies into 5 and out. of working 'connection with. the nozzle 5 I provide a die-shifter or actuating device comprising a vertically disposed lever 15, fulcrumedat lti to'the table for rocking motion in a direction toward and from they nozzle 5.

adapted to engage, the outer surface of a die a The upper arm of this lever is or mold brought to a position between it and the nozzle 5, and may be detachably connected with the die or mold, so that by reverse movements of the lever the die or mold may be shifted into and out of engagement with the nozz'le.- The lower arm of the lever is coupledto the rod 17 of a piston 18 operating in a cylinder 19, which may be 20 supplied with air from a suitable source for shifting the piston back and forth, whereby the lever will be operated on its reverse movements. Any other suitable automatic or manually controlled means for actuating the lever may, however, be employed.

In the operation of the device, it will be understood that one or more dies may be placed in position upon the rotary carrier, and that when it is desired to employ a par- 'ticular die the carrier ring 8 is turned until the die. is brought to a working position opposite the nozzle 5 and between said nozzle and the upper arm of the (lie actuating lever. Motion may then be communicated to 3 the lever to force the die inwardly, thereby bringing the tapered end 6 of the nozzle 5 into engagement with the tapered inlet 14:.

of the die, so that upon the actuation of the expelling mechanism of themetal supplying 0 device the charge of molten metal will be a forced through the nozzle into the die for the carrying out of the casting action. One and the same die may be employed for east ing any certain article, and. when it is desired to make a difi'erent casting a die in use may be removed" and the desired one substituted in its place, or the ring may be shifted around to bring any die of th e series into working position. It will be understood 5 that when the die and nozzle are engaged a H locking action is set up by which these parts are maintained in ,fi ied relationship for the' 1 transfer of metal from one to the other, and i that upon moving the upper arm of the actuating lever outwardly the die, if coni nected with the lever, will be moved outward by it, or if not connected with the lever may be moved outward by hand, thus breaking connection between the die and nozzle and permitting the carrier ring to be r0- 0. tated to bring any other nozzle in position. By means of my invention any number of interchangeable molds may be conveniently employed for rapid casting and to enable various kinds of castings to be made on one and the same machine.

.I claim v 1. In a die casting apparatus, theoombination of a support, a die carrier mounted to revolve upon the support, sai 7. ring being provided at intervals with radial guideways, a metal supplying device disposed upon the support within the space bounded by the ring and provided with ,3

tapered discharge nozzle, molds slidably mounted in said radial guideways and having tapered inlets to receive said tapered nozzle, and means for adjusting the dies inwardly to bring the inlet of a die into engagement with said nozzle." 8.

2. In a casting apparatus, the combinl tion of a support, a rotary ring-shape carrier mounted upon the support and provided with radial guideways, a'metal supplying device mounted upon the support'within the space bounded by the ring and provided with a vtapered discharge nozzle, molds;v mounted in said radial .guideways and each provided with atapered inlet to receive the .tapered nozzle, a lever pivotally mounted uponthe supportat a point in the pathof movement of the rotary carrier ring, said lever having upwardly and downwardly projecting arms, the former being adapted to engage and shift the die inwardly to-receiving position, and means operating upon the lower arm of the lever for,moving said lever in its die shifting action.

Intestiniony whereof'I aflix my signature in presence of two witnesses.

/ 7 I JAMES BATE. \Yitnessesi 7 HAROLD MCGREGOR, "W. R. MoGREeoR. 

